Kligerman is on standby for Saturday's Sprint All-Star Race at Charlotte Motor Speedway as Busch flies in after Indianapolis 500 qualifying. Busch is set to race in the May 25 Indianapolis 500 and then fly to Charlotte for the Coca-Cola 66.

Kligerman was selected in case Busch is unable to practice, qualify or potentially start his No. 41 Chevrolet in the Sprint Cup races because of a schedule conflict or logistical issue.

"I'm grateful for the opportunity and want to thank everyone at Stewart-Haas Racing for entrusting me with the Haas Automation Chevy," said Kligerman, who has competed in eight Sprint Cup races in 2014. "For these next two weeks, my sole focus is to help the No. 41 team compete at a high level, no matter how big or small my role might be."

In the event Busch does not make it back to Charlotte on time, Kligerman will start the Coca-Cola 600. Upon Busch's arrival, Kligerman will yield the seat of the No. 41 to Busch and finish the race.

"Parker and I were teammates a few years ago when we were together at Penske and his feedback was always really good," Busch said. "Plus, we're built about the same, and that's really important as we don't want to have to adjust seats or pedal positions inside the racecar."

Busch, who won the 2004 NASCAR Cup championship, has 25 career Sprint Cup victories, the most recent of which came March 30 at Martinsville (Va.) Speedway.